Satoru has left girls swooning after his first kendo practice.  Everyone is talking about him, and there's a clamor when they discover that he's living with Makoto.  But at home, his stiff demeanor makes it very awkward.
That's not a big deal.
Das ist keine große Sache.
Eso no importa.
Eso no importa.
C’est pas grave.
Non importa.
Não é nada demais.